Yaskawa · Drives
CIMR-AC4A0058AAA — A1000 400 V AC drive: fault codes, repair & supply
The CIMR-AC4A0058AAA is a Yaskawa A1000 400 V-class AC drive used on pumps, conveyors, cranes and general machinery. Confirm the exact rating from the nameplate. Star Automations sources and supplies the CIMR-AC4A0058AAA and repairs failed units at component level, so you can choose between a replacement and getting your existing unit restored. This is a current OEM line. Availability and price are confirmed per enquiry. Most quotes come back the same day — send the part number or the fault code on WhatsApp.
Common Yaskawa A1000 fault codes and what we usually find
Fault code wording can differ by firmware and manual revision — always confirm against the manual for your exact unit. The causes below are typical findings, not a diagnosis of your specific unit.
| Code | Meaning | Typical cause |
|---|---|---|
| oC | Overcurrent | Output short circuit, motor insulation failure, too-short acceleration time |
| GF | Ground fault | Motor or cable insulation failure |
| ov | DC bus overvoltage | Fast deceleration, regenerative load, no braking resistor |
| Uv1 | DC bus undervoltage | Low or dropped supply, failed charge circuit, loose terminals |
| oH | Heatsink overheat | Blocked airflow, failed fan, high ambient temperature |
| oL1 | Motor overload | Mechanical overload or wrong motor current setting |
| oL2 | Drive overload | Load above drive rating, failed current sensing |
| PF | Input phase loss | Missing supply phase, loose terminal, failed input stage |
| LF | Output phase loss | Motor cable break or failed output stage |
| CPF00 / CPF02 | Control circuit fault | Failed control board or power supply |
When a CIMR-AC4A0058AAA needs attention
- Drive trips on oC, GF or ov
- Fan not running or high heatsink temperature
- Display blank or drive will not power up
- Burnt smell or damaged power stage
- Trips on start or under load
Replace or repair your CIMR-AC4A0058AAA
Source a replacement
Send the part number. We check sourcing from global surplus and the OEM channel and reply the same day with availability, condition and price. Advance or verified escrow applies.
Repair your existing unit
If sourcing takes longer or you want to keep your configuration, we repair at component level — power stage, gate-drive, control and supply sections — and test before dispatch.
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CIMR-AC4A0058AAA — common questions
Can you supply the CIMR-AC4A0058AAA in India?
Can a faulty CIMR-AC4A0058AAA be repaired instead of replaced?
My CIMR-AC4A0058AAA shows oC (overcurrent). What should I do?
Is the exact part number important?
Need the CIMR-AC4A0058AAA now?
Send the part number or fault code — we reply the same day. Serving Chennai, Puducherry, Bengaluru, Hyderabad, Delhi and pan-India.